/*global jQuery */
/*jshint browser:true */
/*!
* FitVids 1.1
*
* Copyright 2013, Chris Coyier - http://css-tricks.com + Dave Rupert - http://daverupert.com
* Credit to Thierry Koblentz - http://www.alistapart.com/articles/creating-intrinsic-ratios-for-video/
* Released under the WTFPL license - http://sam.zoy.org/wtfpl/
*
*/

(function ($) {

    "use strict";

    $.fn.fitVids = function (options) {
        var settings = {
            customSelector: null,
            ignore: null,
        };

        if (!document.getElementById('fit-vids-style')) {
            // appendStyles: https://github.com/toddmotto/fluidvids/blob/master/dist/fluidvids.js
            var head = document.head || document.getElementsByTagName('head')[0];
            var css = '.fluid-width-video-wrapper{width:100%;position:relative;padding:0;}.fluid-width-video-wrapper iframe,.fluid-width-video-wrapper object,.fluid-width-video-wrapper embed {position:absolute;top:0;left:0;width:100%;height:100%;}';
            var div = document.createElement('div');
            div.innerHTML = '<p>x</p><style id="fit-vids-style">' + css + '</style>';
            head.appendChild(div.childNodes[1]);
        }

        if (options) {
            $.extend(settings, options);
        }

        return this.each(function () {
            var selectors = [
                "iframe[src*='player.vimeo.com']",
                "iframe[src*='youtube.com']",
                "iframe[src*='youtube-nocookie.com']",
                "iframe[src*='kickstarter.com'][src*='video.html']",
                "object",
                "embed"
            ];

            if (settings.customSelector) {
                selectors.push(settings.customSelector);
            }

            var ignoreList = '.fitvidsignore';

            if (settings.ignore) {
                ignoreList = ignoreList + ', ' + settings.ignore;
            }

            var $allVideos = $(this).find(selectors.join(','));
            $allVideos = $allVideos.not("object object"); // SwfObj conflict patch
            $allVideos = $allVideos.not(ignoreList); // Disable FitVids on this video.

            $allVideos.each(function () {
                var $this = $(this);
                if ($this.parents(ignoreList).length > 0) {
                    return; // Disable FitVids on this video.
                }
                if (this.tagName.toLowerCase() === 'embed' && $this.parent('object').length || $this.parent('.fluid-width-video-wrapper').length) {
                    return;
                }
                if ((!$this.css('height') && !$this.css('width')) && (isNaN($this.attr('height')) || isNaN($this.attr('width')))) {
                    $this.attr('height', 9);
                    $this.attr('width', 16);
                }
                var height = (this.tagName.toLowerCase() === 'object' || ($this.attr('height') && !isNaN(parseInt($this.attr('height'), 10)))) ? parseInt($this.attr('height'), 10) : $this.height(),
                    width = !isNaN(parseInt($this.attr('width'), 10)) ? parseInt($this.attr('width'), 10) : $this.width(),
                    aspectRatio = height / width;
                if (!$this.attr('id')) {
                    var videoID = 'fitvid' + Math.floor(Math.random() * 999999);
                    $this.attr('id', videoID);
                }
                $this.wrap('<div class="fluid-width-video-wrapper"></div>').parent('.fluid-width-video-wrapper').css('padding-top', (aspectRatio * 100) + "%");
                $this.removeAttr('height').removeAttr('width');
            });
        });
    };
// Works with either jQuery or Zepto
})(window.jQuery || window.Zepto);
